Coupa

Finance OAuth

Read and create requisitions, purchase orders, invoices and suppliers in Coupa from any Windmill script, flow or app.

Set up in 2 steps

Connect from the Resources page

Open Resources, click Add a resource/API and find Coupa under Others. Enter your instance name and the client id and secret from Coupa's OAuth2/OIDC Clients page, then save.

Run your first script

Fork any script below and read before writing anything.

Scripts

Building blocks, if none of the projects above fit. Fork one, run it, or call it as a step inside your own flow.

Resource type

coupa — the shape of the credential every script on this page expects.

View raw schema →

Field	Type	Required	What it is
instance_url	string	Yes	Base URL of your Coupa instance, e.g. https://yourcompany.coupahost.com (or .coupacloud.com for partner/demo instances). Filled automatically when you connect via Windmill's OAuth. No trailing slash.
token	string	Yes	OAuth access token, written and refreshed automatically by Windmill's OAuth (client credentials) connection.

Questions

Where do the client credentials come from?

Your Coupa instance, under Setup then OAuth2/OIDC Clients. Create a client with the client credentials grant and the scopes your scripts need.

Why does it ask for an instance name?

Coupa gives each customer its own host, so both the token endpoint and every API call are built from it. instance_url is filled in for you when you connect.

Is my token stored on the hub?

Never. It lives only in your own Windmill workspace, encrypted at rest.

Set up in 2 steps

Connect from the Resources page

Run your first script

Scripts

New Invoices

Update Supplier

Update Purchase Order

List Suppliers

List Requisitions

List Purchase Orders

List Invoices

List Expense Reports

List Contracts

Get Supplier

Get Requisition

Get Purchase Order

Get Invoice

Get Expense Report

Get Contract

Create Supplier

Create Requisition

Create Invoice

Change Purchase Order Status

Change Invoice Status

Resource type

Questions